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33 Willys Frame Plans


1933- 1935 Willys cars and trucks, street or drag car, gasser or rat rod.



The plans with work with a straight axle or a Mustang II front end.

The rear end can be mounted with ladder bars, 4 link, 4 bar or leaf springs.

Drawings are provided for a stock width frame and a narrowed version to permit you to mount larger tires and install wheel tubs.


The drawing package includes: Fourteen (14) big 11x17” pages showing you how make all parts, assemble them and then install the finished product successfully on your car. In addition to the drawings listed below you also will receive Full installation instructions, bill of materials as well as important information on how to make the options you choose work for your car. The frames shown on the right of this page are the CAD models we developed to make these plans.


  • Narrowed rear end Pro street frame
  • Stock width frame
  • Can be used with Mustang II or straight axle
  • All frame rail parts
  • Crossmembers
  • Rear coil over crossmember & mounts
  • Driveshaft loop
  • Front crossmember to mount for 4 bar, 4 link or ladder bar rear suspension
  • Layout of you work surface
  • Body mounts Apply


This is the biggest and most complete set of plans we have produced to date. Fourteen (14) big 11x17” pages with3D viewsof all parts and assemblies to make fabrication and installation easier than ever.


Comments from our customers:


·        Rodplans  is AWESOME !!!! Happy repeat customer

·        Excellent plans ! Top Notch , very impressed


$16.99 each 1933-36 Willys frame plans
Item # 22

No questions asked money back guarantee.

In the unlikely event that you are not happy for any reason with the plans you have purchased please return the plans within 14 days and we will refund your money. No questions asked.

A small fee to help cover part of the shipping cost will be added at checkout.

$0.95 to the USA and Canada

$1.95 to International customers.




The plans will permit you to make a brand new Willys frame from common steel tubing. The finished frame will be much stronger than the factory frame and will hold up to today’s highway speeds. The drawings have been designed to work with the other plans from to permit the builder to install the type of front and rear suspension they desire. The stock Willys frames were an open channel (i.e. not boxed) design that are constantly flexing. The frame rails had a very small cross section and provided little strength. The small cross section and flexing resulted in a large number of these frames cracking just forward of the firewall after a few years of use.  To state the obvious any frame you may find are over 70 years old that are not cracked yet likely have been damaged by rust over the years. It is my opinion that even a boxed stock Willys frame is marginal for today’s engines. If you are using a fiberglass car the boxed stock frame drops from marginal to not at all acceptable. The stock frames do flex and fiberglass will not take the flexing. You will soon find cracks appearing in your nice new paint job and the next thing you know the doors just do not seem to close right anymore. Do it right the first time and install a new tube frame under your Willys.



A bit of history FYI

The 1933 to 1936 Willys cars had been known as the model 77.

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$16.99 each 1933-36 Willys frame plans
Item # 22

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